Programmable Room Stat with Lock feature

[CES]

Anyone got any recommendations for a decent wireless programmable room stat that can be locked to stop tampering?
I'm quoting for zoning an old system in a social club and they want to use programmable stats, I usually use Honeywell but I cant find one that I can lock.
Any suggestions gratefully received.

 

[tamz]

Danfoss TP5000's can have the keyboard locked in the installers options. They can also be set to an upper and lower limit so it would be possible to set max to say 22 and min to 19.